{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "4\n"
     ]
    }
   ],
   "source": [
    "def f(x):\n",
    "    return 2*x\n",
    "print(f(2))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "200\n"
     ]
    }
   ],
   "source": [
    "print(f(100))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5050\n",
      "Math Error\n"
     ]
    }
   ],
   "source": [
    "def f(x):\n",
    "    if(x<0):\n",
    "        return \"Math Error\"\n",
    "    elif(x<=1):\n",
    "        return x\n",
    "    else: \n",
    "        return x+f(x-1)\n",
    "print(f(100))\n",
    "print(f(-11))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1, 2, 7)\n"
     ]
    }
   ],
   "source": [
    "print(f(1,2))\n",
    "def f(a,b):\n",
    "    return a,b,7;"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "1*1=1  \n",
      "1*2=2  2*2=4  \n",
      "1*3=3  2*3=6  3*3=9  \n",
      "1*4=4  2*4=8  3*4=12 4*4=16 \n",
      "1*5=5  2*5=10 3*5=15 4*5=20 5*5=25 \n",
      "1*6=6  2*6=12 3*6=18 4*6=24 5*6=30 6*6=36 \n",
      "1*7=7  2*7=14 3*7=21 4*7=28 5*7=35 6*7=42 7*7=49 \n",
      "1*8=8  2*8=16 3*8=24 4*8=32 5*8=40 6*8=48 7*8=56 8*8=64 \n",
      "1*9=9  2*9=18 3*9=27 4*9=36 5*9=45 6*9=54 7*9=63 8*9=72 9*9=81 \n"
     ]
    }
   ],
   "source": [
    "n=9\n",
    "for i in range(1,10,1):\n",
    "    for j in range(1,i+1,1):\n",
    "        print(\"{1:}*{0:}={2:<3}\".format(i,j,i*j),end=\"\")\n",
    "    print()\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "hellosdfg*"
     ]
    }
   ],
   "source": [
    "print(\"hello\",end=\"\")\n",
    "print(\"sdfg\",end=\"*\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "2\n",
      "+\n",
      "3\n",
      "5.00\n"
     ]
    }
   ],
   "source": [
    "result={\"+\":\"x+y\",\"-\":\"x-y\",\"*\":\"x*y\",\"/\":'''x/y if y!=0   \\\n",
    "        else \"divided by zero\"'''}\n",
    "x=int(input())\n",
    "z=input().strip()\n",
    "y=int(input())\n",
    "r=eval( result.get(z) )\n",
    "if type(r)!=str:\n",
    " print(format(r,'.2f')) \n",
    "else:\n",
    " print(r)"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.9.0"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}
